QUAL1751 Features: * Counterbore * Material: High speed steel * Pilot diameter:. 17/32, . 9/32 * Cutter diameter: 25/32, 13/32 * Shank diameter:3/4, 3/8 Dimensions: * 1/4"" 9/32"" Counterbore overall length: 5 * 1/2"" 17/32"" Counterbore overall length: 7-1/2 * Product weight: 1.3 lbs